I need to know what the poem "I have been one acquainted with the night" by robert frost means

I have been one acquainted with the night
i have walked out in rain and back in rain
i have out walked the furthest city lifht

i have looked down the saddest city lane
i hace passed by the warchman on his beat
and dropped my eyes, unwilling to explain

i have stood still and stopped the sound of feet
when far away an interupted cry
came over houses from another street

but not to call me back or say good bye
and further still at an unerthly height
o iluminary clock against the sky
proclaimed the time was neither wrong nor right
i have been one acquainted with the night

help!!! please

The central theme of this poem is loneliness. it is about a man who is used to the presence of himself and himself alone."i have walked out in rain and back in rain, i have out walked the furthest city light" suggests that he has no were to go and no one to see. "i have looked down the saddest city lane, i have passed by the watchman on his beat and dropped my eyes, unwilling to explain" means that he is ashamed of his loneliness.
"i have stood still and stopped the sound of feet when far away an interupted cry came over houses from another street but not to call me back or say good bye" further evidence of his unimportance to others and lack of companions.

He isn't at home; he is out walking. Why? Is this what he is "unwilling to explain?" Or is this itself the solitude that he seeks in the night.

He is alone, but is he truely lonely? He has a place to come out of. He has a place to go back to. The moon, not partitioning the day as the sun does, marks an undemanding time, neither "wrong nor right."

i studied about it at my school.. i think it's want to tell us that man in the modern world need sth. to seperate. they have no connection between each other. the tone is sad and desparate. theme is the hopelessness of man/the sense of aliennation...

i hope it can help u some